How to use the Scientific Calculator
- Choose Deg or Rad for angle-based functions.
- Build the expression with the keys or type it, for example
sin(30)+log(100). - Press = or Enter. Use Ans to reuse the last result.
- Implicit multiplication works:
2πand3(4+1)are both understood.
Formula
Supported functions: sin cos tan asin acos atan sinh cosh tanh ln log sqrt cbrt abs exp, constants π and e, powers with ^ and factorial with !.
logis base 10;lnis base e (≈ 2.718281828).- In degree mode, angles are converted with radians = degrees × π ÷ 180.
- Powers are right-associative:
2^3^2= 29 = 512, and-2^2= −4.
Examples
- Height of a ramp: 5 × sin(30) in degree mode = 2.5 m for a 5 m ramp at 30°.
- Decibels: 10 × log(1000) = 30 dB.
- Combinations: 10! ÷ (3! × 7!) = 120 ways to pick 3 from 10.
Frequently asked questions
What order does the calculator follow?
It follows the standard order of operations: brackets first, then powers, then multiplication and division from left to right, then addition and subtraction. So 2 + 3 × 4 = 14, not 20.
Why is sin(180) not exactly zero in radian mode?
In radian mode, 180 means 180 radians, not 180°. Switch to Deg to use degrees. Tiny floating-point leftovers below 10⁻¹² are shown as 0.
What is the largest factorial it can show?
170! is the largest factorial that fits in standard double-precision numbers (about 7.26 × 10³⁰⁶). Anything larger shows as ∞.